公开(公告)号：US06392762B1

公开(公告)日：2002-05-21

申请号：US09275501

申请日：1999-03-24

Applicant: Jenn-Tsair Tsai ,  Bill Chen

Inventor： Jenn-Tsair Tsai ,  Bill Chen

IPC: H04N104

CPC classification number: H04N1/047 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04749

Abstract: A device for quick and precise determination of a scan start point for an image scanner is disclosed. The image scanner includes a photo-processing device and a scanning platform for placing thereon a document to be scanned. The scanning platform is printed with a background region and a color block which are of different colors and located in front of the scan start point of the photo-processing device, and the color block is enclosed with the background region, and has a specified point therein being a predetermined shift to the scan start point along a specific direction. The photo-processing device moves a predetermined distance L0 from the home position to a pre-scan position overlapping with the color block, then moves a calculated distance L1 from the pre-scan position to the specified point, and moves another predetermined distance L2 from the specified point to the scan start point along the specific direction to start scanning. The distance L1 can be automatically adjusted to cover the installation error of the photo-processing device. For another image scanner disclosed herein, the movement of the distance L0 can be omitted by having the color blocks located at the home position which serves as the pre-scan position.

Abstract translation: 公开了一种快速准确地确定图像扫描仪的扫描起始点的装置。 图像扫描仪包括照相处理装置和用于放置待扫描文件的扫描平台。 扫描平台印刷有不同颜色的背景区域和颜色块，并且位于照相处理装置的扫描起始点的前方，并且颜色块被背景区域包围，并且具有指定点 其中沿着特定方向是到扫描开始点的预定移位。 照相处理装置将预定距离L0从原始位置移动到与彩色块重叠的预扫描位置，然后将计算出的距离L1从预扫描位置移动到指定点，并且将另一预定距离L2从 指定点到扫描起点沿特定方向开始扫描。 可以自动调节距离L1以覆盖照相处理设备的安装错误。 对于本文公开的另一图像扫描仪，可以通过使颜色块位于用作预扫描位置的原始位置来省略距离L0的移动。

公开(公告)号：US06377362B1

公开(公告)日：2002-04-23

申请号：US09213987

申请日：1998-12-17

Applicant: Jenn-Tsair Tsai ,  Bill Chen

Inventor： Jenn-Tsair Tsai ,  Bill Chen

IPC: H04P100

CPC classification number: H04N1/0473 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/04706 ,  H04N2201/0472 ,  H04N2201/04787

Abstract: A method and an apparatus for obtaining a magnification error in a first direction for an image scanning apparatus is disclosed. The method includes steps of (a) providing a marking pattern having a particular length in the first direction, (b) scanning the marking pattern to obtain a scanning length in the first direction, and (c) calculating the magnification error in the first direction from scanning length and the particular length.

Abstract translation: 公开了一种用于获得用于图像扫描装置的第一方向的放大误差的方法和装置。 该方法包括以下步骤：（a）提供在第一方向上具有特定长度的标记图案，（b）扫描标记图案以获得第一方向上的扫描长度，以及（c）计算第一方向上的放大误差 从扫描长度和特定长度。

公开(公告)号：US06236471B1

公开(公告)日：2001-05-22

申请号：US09086981

申请日：1998-05-29

Applicant: Hyun-Jun Lee

Inventor： Hyun-Jun Lee

IPC: H04N104

CPC classification number: B41J19/145 ,  H04N1/053 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0468 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: A vertical alignment correction apparatus and method includes a central processing unit for reading a vertical alignment correction program, detecting scanning distances during bidirectional scanning using a vertical reference line, and outputting a control signal for correcting a scanning distance difference; a print driver for receiving the correction control signal and for outputting a control signal for controlling the scanning distances; and a carriage return motor whose rotation number is controlled according to the control signal output from the print driver.

Abstract translation: 一种垂直取向校正装置和方法，包括用于读取垂直取向校正程序的中央处理单元，使用垂直参考线检测双向扫描期间的扫描距离，并输出用于校正扫描距离差的控制信号; 打印驱动器，用于接收校正控制信号并输出​​用于控制扫描距离的控制信号; 以及回转电动机，其转数根据从打印驱动器输出的控制信号进行控制。

公开(公告)号：US06188805B1

公开(公告)日：2001-02-13

申请号：US08687015

申请日：1996-07-16

Applicant: Bing-Hsiu Wu ,  Chien-Hsing Tang ,  Ted Cheng

Inventor： Bing-Hsiu Wu ,  Chien-Hsing Tang ,  Ted Cheng

IPC: G06K700

CPC classification number: H04N1/00816 ,  H04N1/053 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/044 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04758 ,  H04N2201/04793

Abstract: A method for automatically aligning a charge coupled device of a scanner by using a software contained in the scanner instead of physically aligning the charge coupled device is disclosed. The scanner comprises a charge coupled device (CCD) having an array of optic sensors for converting a reflected line image into an analog signal array, an analog-to-digital (A/D) converter for converting the analog signal array into an image data array, and a test region having a positioning mark in it. The method comprises the following steps of: (1) generating an image data array which comprises the image of the test region in it by using the CCD and the A/D converter; (2) identifying the positioning mark from the image data array; and (3) setting an effective scanning range which defines the start and stop positions of valid image data within the image data array according to the identified positioning mark.

Abstract translation: 公开了一种通过使用扫描仪中包含的软件来自动对准扫描仪的电荷耦合器件而不是物理对准电荷耦合器件的方法。 扫描器包括具有用于将反射线图像转换为模拟信号阵列的光学传感器阵列的电荷耦合器件（CCD），用于将模拟信号阵列转换成图像数据的模数（A / D）转换器 阵列，以及在其中具有定位标记的测试区域。 该方法包括以下步骤：（1）通过使用CCD和A / D转换器生成包括测试区域的图像的图像数据阵列;（2）从图像数据阵列识别定位标记; 和（3）根据所识别的定位标记设置有效扫描范围，其定义图像数据阵列内有效图像数据的开始和停止位置。

公开(公告)号：EP1289255A3

公开(公告)日：2005-09-28

申请号：EP02017493.4

申请日：2002-08-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yamada, Masakatsu ,  Takano, Toshiyuki ,  Ishida, Yasushi ,  Saito, Toshiaki ,  Imai, Takashi ,  Sugiyama, Shigeyuki ,  Satake, Makoto ,  Nakagawa, Daigo ,  Nakamura, Naomi ,  Bannai, Nobuyuki ,  Suzuki, Takuma ,  Fujinaga, Seiya

IPC: H04N1/047

CPC classification number: H04N1/0473 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0456 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04755 ,  H04N2201/04793

Abstract: An image reading device includes a memory unit for storing positional information of a sensor for moving by a drive unit to read an image of a document and a control unit for controlling the drive unit to move the sensor based on the positional information stored in the memory unit. The control unit drives the drive unit by an amount of driving sufficient for an image reading unit to move in a predetermined direction to abut the stop members, controls the drive unit to move the sensor so as to detect the position mark, and updates the positional information of the memory unit to a predetermined initial value based on the detection of the position mark by the sensor. The image reading device can store data of a reference position promptly even if a photo-interrupter is not provided when the data of the reference position is not stored in a memory unit.

公开(公告)号：EP1254767A4

公开(公告)日：2003-06-11

申请号：EP01954475

申请日：2001-08-06

Applicant: DAINIPPON SCREEN MFG

Inventor： EDAMITSU K ,  KAKIMOTO S ,  KATSUMA Y

IPC: H04N1/047 ,  H04N1/06 ,  H04N1/113 ,  H04N1/12 ,  B41C1/10

CPC classification number: H04N1/0473 ,  B41P2227/70 ,  H04N1/047 ,  H04N1/06 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04756 ,  H04N2201/04786 ,  H04N2201/04793

Abstract: A printing device reads an image on a printing paper with an image pickup part. It image-processes obtained image data in a control part, and operates the positions of respective register marks (R1 to R4). It operates the quantity of displacement necessary for positioning an image. It obtains an offset count number Co for deciding an image recording starting position from the obtained quantity of displacement. It stores the obtained offset count number Co while obtaining starting position data. Then, dimensional correction data for the image is calculated. The image on the printing paper is first picked up, and the necessary quantity of displacement is calculated. A speed coefficient k is calculated for changing the rotational speed of a plate cylinder. Following this, a correction quantity by a Cd default count number previously set for deciding the image recording starting position is changed. Accordingly, the offset count number Co is calculated again on the basis of the obtained speed variable k. The obtained speed coefficient k and the offset count number Co are stored, and starting position data is obtained from both data.

公开(公告)号：EP0853415B1

公开(公告)日：2003-06-11

申请号：EP97307279.6

申请日：1997-09-18

Applicant: Hewlett-Packard Company, A Delaware Corporation

Inventor： Christensen, Michael L.

IPC: H04N1/047

CPC classification number: H04N1/0473 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/04705 ,  H04N2201/0472 ,  H04N2201/04732

Abstract: Apparatus (10) for sensing an initial position of a moveable carriage (18) mounted within a housing (22) of an imaging device (11) may comprise a detector (62) having a plurality of light sensitive elements (17) for detecting objects within a field of view. At least one of the light sensitive elements (17) is an image sensing element (21) and at least one of the light sensitive elements (17) is a position sensing element (19). A reference mark (15) is positioned on the housing (22) so that is within the field of view (29) of the position sensing element (19) of the detector (62) when the carriage (18) is at about a home position. An image data processor (46) connected to the detector (62) and responsive to the output signals generated thereby determines whether the reference mark (15) is within the field of view (29) of the position sensing element (19) of the detector (62).

公开(公告)号：EP0892546A3

公开(公告)日：2000-04-26

申请号：EP98305615.1

申请日：1998-07-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lee, Hyuk-jae ,  Gahang, Goo-soo

IPC: H04N1/053 ,  H04N1/191 ,  H04N1/047

CPC classification number: H04N1/128 ,  H04N1/053 ,  H04N1/1911 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04787

Abstract: Disclosed are a method and an apparatus for correcting an alignment error of a scanning head of a shuttle type scanner capable of compensating for an error occurring in a manufacturing or an alignment error generated by an impact in use. When an alignment error correction mode is selected at a preset time, the scanning head is moved to a position facing a correction pattern formed on a correction plate. The correction pattern is scanned through the scanning head and the alignment error is calculated from the scanned pattern image data using a predetermined operation function. After performing a first correction to the calculated alignment error by moving first and last pixels of the image data, a second correction to the alignment error is performed by applying a preset correction function to remaining pixels excluding the first and last pixels.

公开(公告)号：EP0881818A3

公开(公告)日：1999-05-06

申请号：EP98304284.7

申请日：1998-05-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lee, Hyun-jun

IPC: H04N1/047

CPC classification number: B41J19/145 ,  H04N1/053 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0468 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: A vertical alignment correction apparatus method comprises detecting scanning distances during bidirectional scanning using a reference mark, and correcting a difference in scanning distances by adjusting the length of the scan. A scanning apparatus implementing the method is also described.

公开(公告)号：EP0853415A2

公开(公告)日：1998-07-15

申请号：EP97307279.6

申请日：1997-09-18

Applicant: Hewlett-Packard Company

Inventor： Christensen, Michael L.

IPC: H04N1/047

CPC classification number: H04N1/0473 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/04705 ,  H04N2201/0472 ,  H04N2201/04732

Abstract: Apparatus (10) for sensing an initial position of a moveable carriage (18) mounted within a housing (22) of an imaging device (11) may comprise a detector (62) having a plurality of light sensitive elements (17) for detecting objects within a field of view. At least one of the light sensitive elements (17) is an image sensing element (21) and at least one of the light sensitive elements (17) is a position sensing element (19). A reference mark (15) is positioned on the housing (22) so that is within the field of view (29) of the position sensing element (19) of the detector (62) when the carriage (18) is at about a home position. An image data processor (46) connected to the detector (62) and responsive to the output signals generated thereby determines whether the reference mark (15) is within the field of view (29) of the position sensing element (19) of the detector (62).

Abstract translation: 用于感测安装在成像装置（11）的壳体（22）内的可移动滑架（18）的初始位置的装置（10）可以包括具有多个用于检测物体的光敏元件（17）的检测器（62） 在一个视野内。 光敏元件（17）中的至少一个是图像感测元件（21），并且至少一个感光元件（17）是位置感测元件（19）。 当托架（18）在家中时，参考标记（15）定位在壳体（22）上，使得其位于检测器（62）的位置感测元件（19）的视场（29）内 位置。 连接到检测器（62）并且响应于所生成的输出信号的图像数据处理器（46）确定参考标记（15）是否在检测器的位置检测元件（19）的视场（29）内 （62）。